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- #561
Thanks!
Builds 2001 LC HZJ78 AK -RESTORATION- For Overland
- Thread starter mt72
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- elocker hzj78 overland build
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Thanks!
I have a mightyvac like the one @AirheadNut posted. Might actually be the exact same one. But any vacuum pump with a gauge (to verify leaks) should do in case you can borrow one for now. Vacuum test your VSV as well.
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- #563
I have a break bleeder I will give it a go and see or order this one
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- #564
Do I need to keep the engine running while pumping?
Easiest way I have found to test the VSV's is to disconnect the "out-line" on the VSV - the line that goes to the actuator on the transfer, then connect your vacuum pump with the gauge to the out on the VSV. Do your test with the 4WD switch (engine running) and make sure you get vacuum on the gauge. I don't recall off the top of my head what the FSM says the vacuum range is but look that up to make sure you are getting the correct vacuum. If you get NONE then I would check the "in-side" of the VSV and make sure the VSV is getting proper vacuum and go from there. If you are still stumped, then just bring it over and we can work on it together.
If you are just testing the actuator diaphragm then it is not necessary to have the engine running.
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- #567
Easiest way I have found to test the VSV's is to disconnect the "out-line" on the VSV - the line that goes to the actuator on the transfer, then connect your vacuum pump with the gauge to the out on the VSV. Do your test with the 4WD switch (engine running) and make sure you get vacuum on the gauge. I don't recall off the top of my head what the FSM says the vacuum range is but look that up to make sure you are getting the correct vacuum. If you get NONE then I would check the "in-side" of the VSV and make sure the VSV is getting proper vacuum and go from there. If you are still stumped, then just bring it over and we can work on it together.
I will run so test if I fail calling the towing from QC to BC
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- #568
Found another great site that enables to order Toyota connector cheap
www.corsa-technic.com
Taking no chance got the connector for the solenoid 4x4 and I was chassing the TEMP one and found it..
I trying my pump for the Vaccum but the fitting not working need to find adaptor for proper hose!
DHL came by too and delivered
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Taking no chance got the connector for the solenoid 4x4 and I was chassing the TEMP one and found it..
I trying my pump for the Vaccum but the fitting not working need to find adaptor for proper hose!
DHL came by too and delivered
I had another thought on this... not on the adapter for your vacuum pump, but on the issue itself. Could it possibly be something as simple as the hoses are connected backwards on the VSV? That would definitely cause this, and all individual pieces would test ok.
I can't recall which is which off the top of my head, but if you want I can check mine and let you know.
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- #570
The only I could see being inverted could be actually the one on the Solenoid it's self will check that ... Cause the other seem legit... I'll try that out right away
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- #571
I've check the lines for the 4x4 solenoid they seem to be properly working and both have continuity with H4 Switch.
From there I was able to pump both lines keep the pressure still nothing engage in 4x4. I will try to find the old solenoid and test if I can find it
From there I was able to pump both lines keep the pressure still nothing engage in 4x4. I will try to find the old solenoid and test if I can find it
yeah sounds like you will need to inspect the actuator at this point. I believe there are kits to rebuild them, but if the diaphragm is holding air it might just need cleaning.
One last thought, did you turn the gears a bit manually to make sure they aren't not quite aligned? Can't remember, did you manually put it into L4 and did everything lock up then? Best of luck!
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- #574
yeah sounds like you will need to inspect the actuator at this point. I believe there are kits to rebuild them, but if the diaphragm is holding air it might just need cleaning.
One last thought, did you turn the gears a bit manually to make sure they aren't not quite aligned? Can't remember, did you manually put it into L4 and did everything lock up then? Best of luck!
I can't find the rebuild kit but I asked AMAYAMA the ETA on the whole thing.... as per engaging the from L4/N/H4 manually only the N worked.... when I tried
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- #575
So Amayama is putting it very far away EMS International (the 5th of June - the 18th of July)
I will drive to my friend dad we will look at it together... I need to buy a new TC so I am a little upset to pay for 2 new Diaphragm... Will check if I can find rebuilt kit
I will drive to my friend dad we will look at it together... I need to buy a new TC so I am a little upset to pay for 2 new Diaphragm... Will check if I can find rebuilt kit
Have you considered swapping your TC for a manual shifting version?
HF1A TC from HDJ79 will fit behind a H15# transmission and it be simple with no vacuum required for changing from 2WD into 4WD.
HF1A TC from HDJ79 will fit behind a H15# transmission and it be simple with no vacuum required for changing from 2WD into 4WD.
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- #577
I did not know about this swap? Do you have the part # of the TC in question?
The problem was resolved this morning we tested the vaccum everything was fine still no light in the dash (maybe my fault) anyway stupid as forgeting to turn the wheel hub to 4x4 to get it engage.... Lecon learn still got the drive 30KM that was a bit stressed. I am putting the rear bar on today will update soon
36120-60351 for TC
You will have to buy all of the small pieces to make the manual TC lever to work, but they are available.
Nice, good to hear you figured it out.
Glad you have it resolved! I too at some point will switch to the manual lever. It really does not make much sense to have a push button transfer case when I have manual hubs anyways. But the true purpose for me would be to remove one more point of failure in the system. All about reliability for me.
Are you still running the R151f transmission? Because if so the spare transmission you posted earlier would be a direct swap in and has a manual transfer case.
